I remember when creating CDs under Windows NT, it would make a coaster usually 50% of the time. It was really touchy.
Since I *never* made a coaster burning CDs under OS/2, I tried to see how far I could push it. I set up an FTP server on an OS/2 box and mapped the CD burner as an accessable drive. Then from four other computers I initiated a FTP connection and uploaded files directly to the burner, all simultaneously. Worked perfectly.
I've never seen that trick duplicated under Windows. OS/2 was awesome.